iOS Team / CNLiveMateCode · Files

//
//  CNLiveFaceAuthController.swift
//  metaCode
//
//  Created by zx on 2024/6/11.
//  人脸识别页面

import Foundation
import SnapKit
import QMUIKit
import UIKit
import AVFoundation
import Vision

class CNLiveFaceAuthController:CNLiveBaseViewController{
    
    var channelId:String = "0"
    var isResume:Bool = false//是否跳转到数字简历页面
    
    lazy var previewView :CNLiveAuthPreviewView = {
        let previewView = CNLiveAuthPreviewView(frame: CGRect(x: 0, y: KNavigationHeight, width: KSreenWidth, height: KSreenHeight-KNavigationHeight))
        return previewView
    }()
    
    // VNRequest: Either Retangles or Landmarks
    private var faceDetectionRequest: VNRequest!
    
    // TODO: Decide camera position --- front or back
    private var devicePosition: AVCaptureDevice.Position = .front
    
    // Session Management
    private enum SessionSetupResult {
        case success
        case notAuthorized
        case configurationFailed
    }
    
    private let session = AVCaptureSession()
    private var isSessionRunning = false
    
    // Communicate with the session and other session objects on this queue.
    private let sessionQueue = DispatchQueue(label: "session queue", attributes: [], target: nil)
    
    private var setupResult: SessionSetupResult = .success
    
    private var videoDeviceInput:   AVCaptureDeviceInput!

    private var videoDataOutput:    AVCaptureVideoDataOutput!
    private var videoDataOutputQueue = DispatchQueue(label: "VideoDataOutputQueue")
    
    private var requests = [VNRequest]()
    
    private let circleWidth:CGFloat = 250
    
    var realName:String = ""
    var realNumber:String = ""
    
    lazy var circleBgView :UIView = {
        let circleBgView = UIView(frame: self.previewView.bounds)
        circleBgView.backgroundColor = .white
        return circleBgView
    }()
    lazy var circleBgImgView :UIImageView = {
        let iconImgView = UIImageView()
        iconImgView.image = UIImage(named: "auth_faceAuth")
        return iconImgView
    }()
    lazy var descTitleLabel: UILabel = {
        let titleLabel = UILabel()
        titleLabel.textColor = HexColor("#333333")
        titleLabel.textAlignment = .center
        titleLabel.numberOfLines = 2
        titleLabel.font = Font_18
        return titleLabel
    }()
    lazy var yanzhengBtn: UIButton = {
        let  nextBtn = UIButton(type: .custom)
        nextBtn.setTitle("立即验证", for: .normal)
        nextBtn.setTitleColor(.white, for: .normal)
        nextBtn.backgroundColor = HexColor("#1961FE")
        nextBtn.layer.cornerRadius = 22
        nextBtn.clipsToBounds = true
        nextBtn.addTarget(self, action: #selector(yanzhengBtnAction), for: .touchUpInside)
        return nextBtn
    }()
    
    lazy var xieyiLabel: UILabel = {
        let label = UILabel()
        let attrString = NSMutableAttributedString(string: "查看《人脸识别用户信息采集协议》")
        label.frame = CGRect(x: 91.5, y: 558, width: 192, height: 16.5)
        label.numberOfLines = 0
        let attr: [NSAttributedString.Key : Any] = [.font: Font_12,.foregroundColor: UIColor(red: 0.2, green: 0.2, blue: 0.2, alpha: 1)]
        attrString.addAttributes(attr, range: NSRange(location: 0, length: attrString.length))
        view.addSubview(label)
        let strSubAttr1: [NSMutableAttributedString.Key: Any] = [.font: Font_12,.foregroundColor: UIColor(red: 0.2, green: 0.2, blue: 0.2,alpha:1.000000)]
        attrString.addAttributes(strSubAttr1, range: NSRange(location: 0, length: 2))
        let strSubAttr2: [NSMutableAttributedString.Key: Any] = [.font: Font_12,.foregroundColor: UIColor(red: 0.1, green: 0.38, blue: 1,alpha:1.000000)]
        attrString.addAttributes(strSubAttr2, range: NSRange(location: 2, length: 14))
        label.attributedText = attrString
        label.textAlignment = .center
        label.isUserInteractionEnabled = true
        label.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(xieyiAction)))
        return label
    }()
    
    //是否上传图片中
    var isUploadingImage:Bool = false

    override func viewDidLoad() {
        super.viewDidLoad()
        
        navigationBarHidden = false
        titleName = "元码数字认证"

        self.view.addSubview(self.previewView)
        // Set up the video preview view.
        previewView.session = session
        
        // Set up Vision Request
        faceDetectionRequest = VNDetectFaceRectanglesRequest(completionHandler: self.handleFaces) // Default

        setupVision()
        
        /*
         Check video authorization status. Video access is required and audio
         access is optional. If audio access is denied, audio is not recorded
         during movie recording.
         */
        switch AVCaptureDevice.authorizationStatus(for: AVMediaType.video){
        case .authorized:
            // The user has previously granted access to the camera.
            break
            
        case .notDetermined:
            /*
             The user has not yet been presented with the option to grant
             video access. We suspend the session queue to delay session
             setup until the access request has completed.
             */
            sessionQueue.suspend()
            AVCaptureDevice.requestAccess(for: AVMediaType.video, completionHandler: { [unowned self] granted in
                if !granted {
                    self.setupResult = .notAuthorized
                }
                self.sessionQueue.resume()
            })
            
            
        default:
            // The user has previously denied access.
            setupResult = .notAuthorized
        }
        
        /*
         Setup the capture session.
         In general it is not safe to mutate an AVCaptureSession or any of its
         inputs, outputs, or connections from multiple threads at the same time.
         
         Why not do all of this on the main queue?
         Because AVCaptureSession.startRunning() is a blocking call which can
         take a long time. We dispatch session setup to the sessionQueue so
         that the main queue isn't blocked, which keeps the UI responsive.
         */
        
        sessionQueue.async { [unowned self] in
            self.configureSession()
        }

        self.previewView.addSubview(self.circleBgView)
        //通过设置mask透明区域来实现镂空效果
        let path:UIBezierPath = UIBezierPath.init(rect: UIScreen.main.bounds)
        //rect 镂空的区域
        let rect = CGRectMake((self.view.bounds.width-circleWidth)/2, 90,circleWidth, circleWidth)
        let appendPath: UIBezierPath = UIBezierPath.init(roundedRect: rect, cornerRadius: circleWidth/2)
        path.append(appendPath.reversing())
        let shapeLayer: CAShapeLayer = CAShapeLayer()
        shapeLayer.path = path.cgPath;
        self.circleBgView.layer.mask = shapeLayer

        self.circleBgImgView.frame = rect
        self.previewView.addSubview(self.circleBgImgView)
        
        self.previewView.addSubview(self.descTitleLabel)
        self.descTitleLabel.text = String(format: "验证 %@ 的人脸完成身份认证， 以继续使用服务", self.realName)
        self.descTitleLabel.snp.makeConstraints { make in
            make.top.equalTo(self.circleBgImgView.snp.bottom).offset(15)
            make.left.equalTo(15)
            make.right.equalToSuperview().offset(-15)
            make.height.equalTo(50)
        }
        
        self.previewView.addSubview(self.yanzhengBtn)
        self.yanzhengBtn.snp.makeConstraints { make in
            make.top.equalTo(self.descTitleLabel.snp.bottom).offset(90)
            make.height.equalTo(44)
            make.left.equalTo(30)
            make.right.equalToSuperview().offset(-30)
        }
        
        self.previewView.addSubview(self.xieyiLabel)
        self.xieyiLabel.snp.makeConstraints { make in
            make.top.equalTo(self.yanzhengBtn.snp.bottom).offset(15)
            make.height.equalTo(17)
            make.left.equalTo(30)
            make.right.equalToSuperview().offset(-30)
        }
        
    }
    
    override func viewWillAppear(_ animated: Bool) {
        super.viewWillAppear(animated)
        
        sessionQueue.async { [unowned self] in
            switch self.setupResult {
            case .success:
                // Only setup observers and start the session running if setup succeeded.
                self.addObservers()
                self.session.startRunning()
                self.isSessionRunning = self.session.isRunning
                
            case .notAuthorized:
                DispatchQueue.main.async { [unowned self] in
                    let message = NSLocalizedString("AVCamBarcode doesn't have permission to use the camera, please change privacy settings", comment: "Alert message when the user has denied access to the camera")
                    let    alertController = UIAlertController(title: "AppleFaceDetection", message: message, preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: "Alert OK button"), style: .cancel, handler: nil))
                    alertController.addAction(UIAlertAction(title: NSLocalizedString("Settings", comment: "Alert button to open Settings"), style: .`default`, handler: { action in
                        UIApplication.shared.open(URL(string: UIApplication.openSettingsURLString)!, options: [:], completionHandler: nil)
                    }))
                    
                    self.present(alertController, animated: true, completion: nil)
                }
                
            case .configurationFailed:
                DispatchQueue.main.async { [unowned self] in
                    let message = NSLocalizedString("Unable to capture media", comment: "Alert message when something goes wrong during capture session configuration")
                    let alertController = UIAlertController(title: "AppleFaceDetection", message: message, preferredStyle: .alert)
                    alertController.addAction(UIAlertAction(title: NSLocalizedString("OK", comment: "Alert OK button"), style: .cancel, handler: nil))
                    
                    self.present(alertController, animated: true, completion: nil)
                }
            }
        }
    }
    
    override func viewWillDisappear(_ animated: Bool) {
        sessionQueue.async { [unowned self] in
            if self.setupResult == .success {
                self.session.stopRunning()
                self.isSessionRunning = self.session.isRunning
                self.removeObservers()
            }
        }
        
        super.viewWillDisappear(animated)
    }
    
    @objc func yanzhengBtnAction(){
        self.circleBgImgView.isHidden = true
    }
    
    @objc func xieyiAction(){
        let webVC = CNWebViewController()
        webVC.url = URL(string: "https://wjj.ys1.cnliveimg.com/term/ymRlsbyhxxcjxy.html")
        self.navigationController?.pushViewController(webVC, animated: true)

    }
    
    override func viewWillTransition(to size: CGSize, with coordinator: UIViewControllerTransitionCoordinator) {
        super.viewWillTransition(to: size, with: coordinator)
        
        if let videoPreviewLayerConnection = previewView.videoPreviewLayer.connection {
            let deviceOrientation = UIDevice.current.orientation
            guard let newVideoOrientation = deviceOrientation.videoOrientation, deviceOrientation.isPortrait || deviceOrientation.isLandscape else {
                return
            }
            
            videoPreviewLayerConnection.videoOrientation = newVideoOrientation
            
        }
    }
    
    // Segmente Control to switch over FaceOnly or FaceLandmark
    func UpdateDetectionType(_ sender: UISegmentedControl) {
        faceDetectionRequest = sender.selectedSegmentIndex == 0 ? VNDetectFaceRectanglesRequest(completionHandler: handleFaces) : VNDetectFaceLandmarksRequest(completionHandler: handleFaceLandmarks)
        
        setupVision()
    }

    //zx
    var screenImage:UIImage?
    lazy var imageView :UIImageView = {
        let imageView = UIImageView()
        return imageView
    }()
//    lazy var faceImageView :UIImageView = {
//        let imageView = UIImageView()
//        return imageView
//    }()
    
    //zx
    var tempPixelBuffer:CVImageBuffer?
    
    
    func imageFromSampleBuffer(sampleBuffer: CMSampleBuffer) -> UIImage? {
        guard let imageBuffer = CMSampleBufferGetImageBuffer(sampleBuffer) else {
            return nil
        }
          
        // 锁定像素缓冲区基地址
        CVPixelBufferLockBaseAddress(imageBuffer, .readOnly)
          
        // 获取像素缓冲区的宽度和高度
        let baseAddress = CVPixelBufferGetBaseAddress(imageBuffer)
        let bytesPerRow = CVPixelBufferGetBytesPerRow(imageBuffer)
        let width = CVPixelBufferGetWidth(imageBuffer)
        let height = CVPixelBufferGetHeight(imageBuffer)
          
        // 创建CIImage
        let colorSpace = CGColorSpaceCreateDeviceRGB()
        let bitmapInfo: CGBitmapInfo = CGBitmapInfo(rawValue: CGImageAlphaInfo.premultipliedFirst.rawValue)
        let context = CGContext(
            data: baseAddress,
            width: width,
            height: height,
            bitsPerComponent: 8,
            bytesPerRow: bytesPerRow,
            space: colorSpace,
            bitmapInfo: bitmapInfo.rawValue
        )
          
        guard let cgImage = context?.makeImage() else {
            CVPixelBufferUnlockBaseAddress(imageBuffer, .readOnly)
            return nil
        }
          
        // 解锁像素缓冲区基地址
        CVPixelBufferUnlockBaseAddress(imageBuffer, .readOnly)
          
        // 创建UIImage
        let image = UIImage(cgImage: cgImage)
        return image
    }
    func takeScreenshot(view: UIView? = nil) -> UIImage? {
        // 获取屏幕截图
        let bounds = UIScreen.main.bounds
        let scale = UIScreen.main.scale
        
        // 开始图形上下文
        UIGraphicsBeginImageContextWithOptions(bounds.size, false, scale)
        
        // 如果没有指定view，则截取整个屏幕
        if let context = UIGraphicsGetCurrentContext() {
            if let view = view {
                // 截取view的截图
                view.layer.render(in: context)
            } else {
                // 截取整个屏幕的截图
                UIApplication.shared.keyWindow?.layer.render(in: context)
            }
            
            // 从图形上下文获取图片
            let image = UIGraphicsGetImageFromCurrentImageContext()
            
            // 结束图形上下文
            UIGraphicsEndImageContext()
            
            return image
        }
        
        return nil
    }
    
    // MARK: -保存实名用户信息
    func saveRealData(){
        //获取用户信息 /api/identityApi/getUserMsg
        CNLiveMineViewModel.requestGetUserMsg(sid: UserInfoManager.shared.userInfo.uid) { result, respStatue in
            if respStatue == .success{
                if let res = result as? MineGetUserMsgUsersModel{
                    let userInfo = UserInfoManager.shared.userInfo
                    userInfo.userMsgUsers = res
                    userInfo.currentUser = res.verifyUsers.first
                    UserInfoManager.cacheUserInfo(userInfo: userInfo)
                    if res.verifyUsers.count > 0{
                        if self.isResume == true{
                            //进入数字简历页面
                            let is_agree = UserDefaults.standard.bool(forKey: "is_agree_shuzijianlixieyi")
                            if is_agree{
                                //跳转数字简历页面
                                let vc = CNLiveDigitalResumeController()
                                self.navigationController?.pushViewController(vc, animated: true)
                            }else{
                                self.showXieyiAlert()
                            }
                        }else{
                            //跳转到身份认证页面
                            let listModel = StandListModel()
                            listModel.id = Int(self.channelId) ?? 0
                            self.navigationController?.pushViewController(CNLiveMineInputViewController.init(listModel: listModel, authType: .person), animated: pushAnimated)
                        }
                    }else{
                        //实名认证失败
                        showMessage(message: "实名认证失败")
                        self.navigationController?.popViewController(animated: true)
                    }
                }
            }
        }
        
    }
    
    
    
    // MARK: - 数字简历协议
    let delegate = UIApplication.shared.delegate as! AppDelegate
    /// 未认证-inputType17时弹窗背景图
    lazy var alertBgImgView:UIImageView = {
        let alertBgImgView:UIImageView = UIImageView()
        alertBgImgView.tag = 20001
        alertBgImgView.isUserInteractionEnabled = true
        alertBgImgView.contentMode = .scaleAspectFit
        alertBgImgView.backgroundColor = .white
        return alertBgImgView
    }()
    lazy var agreeBtn: UIButton = {
        let  nextBtn = UIButton(type: .custom)
        nextBtn.width = 285
        nextBtn.height = 44
        nextBtn.setTitle("同意协议 领取一下", for: .normal)
        nextBtn.setTitleColor(.white, for: .normal)
        nextBtn.layer.cornerRadius = 22
        nextBtn.clipsToBounds = true
        nextBtn.addTarget(self, action: #selector(agreeBtnAction), for: .touchUpInside)
        nextBtn.backgroundColor = HexColor("#8E8BFB")
        // fillCode
        let bgLayer1 = CAGradientLayer()
        bgLayer1.colors = [UIColor(red: 0.1, green: 0.38, blue: 1, alpha: 1).cgColor, UIColor(red: 0.56, green: 0.55, blue: 0.98, alpha: 1).cgColor]
        bgLayer1.locations = [0, 1]
        bgLayer1.frame = nextBtn.bounds
        bgLayer1.startPoint = CGPoint(x: 0.5, y: 1)
        bgLayer1.endPoint = CGPoint(x: 0, y: 0)
        nextBtn.layer.addSublayer(bgLayer1)
        return nextBtn
    }()
    lazy var jianlixieyiLabel: UILabel = {
        let label = UILabel()
        let attrString = NSMutableAttributedString(string: "查看《元码数字简历服务协议》")
        label.frame = CGRect(x: 0, y: 0, width: KSreenWidth, height: 20)
        let attr1: [NSAttributedString.Key : Any] = [.font: Font_14,.foregroundColor: HexColor("#20252A")!]
        attrString.addAttributes(attr1, range: NSRange(location: 0, length: 2))
        let attr: [NSAttributedString.Key : Any] = [.font: Font_14,.foregroundColor: HexColor("#1961FE")!]
        attrString.addAttributes(attr, range: NSRange(location: 2, length: attrString.length-2))
        label.attributedText = attrString
        label.textAlignment = .center
        label.isUserInteractionEnabled = true
        label.addGestureRecognizer(UITapGestureRecognizer(target: self, action: #selector(jianlixieyiAction)))
        return label
    }()
    //弹出数字简历协议alert
    func showXieyiAlert(){
        delegate.window?.addSubview(self.alertBgImgView)
        alertBgImgView.snp.makeConstraints { make in
            make.centerX.equalToSuperview()
            make.centerY.equalToSuperview()
            make.width.equalToSuperview()
            make.height.equalToSuperview()
        }
        self.alertBgImgView.image = UIImage(named: "mine_jianli_xieyiBg")
        alertBgImgView.addSubview(self.agreeBtn)
        self.agreeBtn.snp.makeConstraints { make in
            make.bottom.equalToSuperview().offset(-50)
            make.width.equalTo(285)
            make.centerX.equalToSuperview()
            make.height.equalTo(44)
        }
        alertBgImgView.addSubview(self.jianlixieyiLabel)
        self.jianlixieyiLabel.snp.makeConstraints { make in
            make.bottom.equalTo(self.agreeBtn.snp.top).offset(-10)
            make.left.right.equalToSuperview()
            make.height.equalTo(20)
        }
    }
    @objc func jianlixieyiAction(){
        //查看数字简历协议
        let webVC = CNWebViewController()
        webVC.url = URL(string: "https://wjj.ys1.cnliveimg.com/term/ymRlsbyhxxcjxy.html")
        self.navigationController?.pushViewController(webVC, animated: true)
        
        delegate.window?.subviews.forEach({ view in
            if view.tag >= 20000{
                view.isHidden = true
            }
        })
    }
    @objc func agreeBtnAction(){
        //同意协议按钮
        delegate.window?.subviews.forEach({ view in
            if view.tag >= 20000{
                view.removeFromSuperview()
            }
        })
        //本地存储已同意
        UserDefaults.standard.set(true,forKey: "is_agree_shuzijianlixieyi")

        //跳转数字简历页面
        let vc = CNLiveDigitalResumeController()
        self.navigationController?.pushViewController(vc, animated: true)
    }
 
}

// Video Sessions
extension CNLiveFaceAuthController {
    private func configureSession() {
        if setupResult != .success { return }
        
        session.beginConfiguration()
        session.sessionPreset = .high
        
        // Add video input.
        addVideoDataInput()
        
        // Add video output.
        addVideoDataOutput()
        
        session.commitConfiguration()
        
    }
    
    private func addVideoDataInput() {
        do {
            var defaultVideoDevice: AVCaptureDevice!
            
            if devicePosition == .front {
                if let frontCameraDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .front) {
                    defaultVideoDevice = frontCameraDevice
                }
            }
            else {
                // Choose the back dual camera if available, otherwise default to a wide angle camera.
                if let dualCameraDevice = AVCaptureDevice.default(.builtInDualCamera, for: AVMediaType.video, position: .back) {
                    defaultVideoDevice = dualCameraDevice
                }
                    
                else if let backCameraDevice = AVCaptureDevice.default(.builtInWideAngleCamera, for: AVMediaType.video, position: .back) {
                    defaultVideoDevice = backCameraDevice
                }
            }
            
            
            let videoDeviceInput = try AVCaptureDeviceInput(device: defaultVideoDevice!)
            
            if session.canAddInput(videoDeviceInput) {
                session.addInput(videoDeviceInput)
                self.videoDeviceInput = videoDeviceInput
                DispatchQueue.main.async {
                    /*
                     Why are we dispatching this to the main queue?
                     Because AVCaptureVideoPreviewLayer is the backing layer for PreviewView and UIView
                     can only be manipulated on the main thread.
                     Note: As an exception to the above rule, it is not necessary to serialize video orientation changes
                     on the AVCaptureVideoPreviewLayer’s connection with other session manipulation.
                     
                     Use the status bar orientation as the initial video orientation. Subsequent orientation changes are
                     handled by CameraViewController.viewWillTransition(to:with:).
                     */
                    let statusBarOrientation = UIApplication.shared.statusBarOrientation
                    var initialVideoOrientation: AVCaptureVideoOrientation = .portrait
                    if statusBarOrientation != .unknown {
                        if let videoOrientation = statusBarOrientation.videoOrientation {
                            initialVideoOrientation = videoOrientation
                        }
                    }
                    self.previewView.videoPreviewLayer.connection!.videoOrientation = initialVideoOrientation
                }
            }
            
        }
        catch {
            print("Could not add video device input to the session")
            setupResult = .configurationFailed
            session.commitConfiguration()
            return
        }
    }
    
    private func addVideoDataOutput() {
        videoDataOutput = AVCaptureVideoDataOutput()
        videoDataOutput.videoSettings = [(kCVPixelBufferPixelFormatTypeKey as String): Int(kCVPixelFormatType_32BGRA)]
        
        
        if session.canAddOutput(videoDataOutput) {
            videoDataOutput.alwaysDiscardsLateVideoFrames = true
            videoDataOutput.setSampleBufferDelegate(self, queue: videoDataOutputQueue)
            session.addOutput(videoDataOutput)
        }
        else {
            print("Could not add metadata output to the session")
            setupResult = .configurationFailed
            session.commitConfiguration()
            return
        }
    }
}

// MARK: -- Observers and Event Handlers
extension CNLiveFaceAuthController {
    private func addObservers() {
        /*
         Observe the previewView's regionOfInterest to update the AVCaptureMetadataOutput's
         rectOfInterest when the user finishes resizing the region of interest.
         */
        NotificationCenter.default.addObserver(self, selector: #selector(sessionRuntimeError), name: Notification.Name("AVCaptureSessionRuntimeErrorNotification"), object: session)
        
        /*
         A session can only run when the app is full screen. It will be interrupted
         in a multi-app layout, introduced in iOS 9, see also the documentation of
         AVCaptureSessionInterruptionReason. Add observers to handle these session
         interruptions and show a preview is paused message. See the documentation
         of AVCaptureSessionWasInterruptedNotification for other interruption reasons.
         */
        NotificationCenter.default.addObserver(self, selector: #selector(sessionWasInterrupted), name: Notification.Name("AVCaptureSessionWasInterruptedNotification"), object: session)
        NotificationCenter.default.addObserver(self, selector: #selector(sessionInterruptionEnded), name: Notification.Name("AVCaptureSessionInterruptionEndedNotification"), object: session)
    }
    
    private func removeObservers() {
        NotificationCenter.default.removeObserver(self)
    }
    
    @objc func sessionRuntimeError(_ notification: Notification) {
        guard let errorValue = notification.userInfo?[AVCaptureSessionErrorKey] as? NSError else { return }
        
        let error = AVError(_nsError: errorValue)
        print("Capture session runtime error: \(error)")
        
        /*
         Automatically try to restart the session running if media services were
         reset and the last start running succeeded. Otherwise, enable the user
         to try to resume the session running.
         */
        if error.code == .mediaServicesWereReset {
            sessionQueue.async { [unowned self] in
                if self.isSessionRunning {
                    self.session.startRunning()
                    self.isSessionRunning = self.session.isRunning
                }
            }
        }
    }
    
    @objc func sessionWasInterrupted(_ notification: Notification) {
        /*
         In some scenarios we want to enable the user to resume the session running.
         For example, if music playback is initiated via control center while
         using AVCamBarcode, then the user can let AVCamBarcode resume
         the session running, which will stop music playback. Note that stopping
         music playback in control center will not automatically resume the session
         running. Also note that it is not always possible to resume, see `resumeInterruptedSession(_:)`.
         */
        if let userInfoValue = notification.userInfo?[AVCaptureSessionInterruptionReasonKey] as AnyObject?, let reasonIntegerValue = userInfoValue.integerValue, let reason = AVCaptureSession.InterruptionReason(rawValue: reasonIntegerValue) {
            print("Capture session was interrupted with reason \(reason)")
        }
    }
    
    @objc func sessionInterruptionEnded(_ notification: Notification) {
        print("Capture session interruption ended")
    }
}

// MARK: -- Helpers
extension CNLiveFaceAuthController {
    func setupVision() {
        self.requests = [faceDetectionRequest]
    }
    
    func handleFaces(request: VNRequest, error: Error?) {
        DispatchQueue.main.async {
            //perform all the UI updates on the main queue
            guard let results = request.results as? [VNFaceObservation] else { return }
            self.previewView.removeMask()
            
            //zx
            let ciImage = CIImage(cvPixelBuffer: self.tempPixelBuffer!)
            let context = CIContext(options: nil)
            if let cgImage = context.createCGImage(ciImage, from: ciImage.extent) {
                let uiImage = UIImage(cgImage: cgImage, scale: UIScreen.main.scale, orientation: .leftMirrored)

                for face in results {
//                    self.previewView.drawFaceboundingBox(face: face)
                    
                    
                    //zx
                    let transform = CGAffineTransform(scaleX: 1, y: -1).translatedBy(x: 0, y: -self.previewView.frame.height)
                    let translate = CGAffineTransform.identity.scaledBy(x: self.previewView.frame.width, y: self.previewView.frame.height)
                    // The coordinates are normalized to the dimensions of the processed image, with the origin at the image's lower-left corner.
                    let facebounds = face.boundingBox.applying(translate).applying(transform)
                    print("11111facebounds:\(facebounds)")
                    
                    //是否在镂空区域内
                    let circleRect = CGRectMake((self.view.bounds.width-self.circleWidth)/2, 90,self.circleWidth, self.circleWidth)
                    if circleRect.contains(facebounds) {
                        print("人脸在圆形区域内")
                        if                         self.isUploadingImage == false{
                            
                            self.cropImageAndUpload(uiImage: uiImage, facebounds: facebounds, cgImage: cgImage)
                        }
                    } else {
                        print("人脸不在圆形区域内")
                    }
                    
                    //眨眼部分逻辑
                    /*
                    let landmarkRequest = VNDetectFaceLandmarksRequest { (request, error) in
                        guard let results = request.results as? [VNFaceObservation],
                                  let faceObservation = results.first,
                                  let landmarks = faceObservation.landmarks else { return }
                        faceObservation.landmarks?.rightEye?.normalizedPoints
                        let leftEyePoints = landmarks.leftEye
                        let rightEyePoints = landmarks.rightEye

                        // 简化处理：假设每个眼睛都有两个关键点，分别代表眼睛的左上角和右上角
                        if let leftEyeTop = leftEyePoints?.normalizedPoints.first,let leftEyeBottom = leftEyePoints?.normalizedPoints.last
                        ,let rightEyeTop = rightEyePoints?.normalizedPoints.first
                            ,let rightEyeBottom = rightEyePoints?.normalizedPoints.last{
                            
                            
                            let leftEyeHeight = leftEyeBottom.x - leftEyeTop.x
                            let leftEyeWidth = leftEyeBottom.y - leftEyeTop.y
                            print("11111leftH:\(leftEyeHeight)")
                            print("11111leftW:\(leftEyeWidth)")
                            // 计算眼睛之间的距离（简化为两个眼睛中心点之间的距离）
                            let leftEyeCenter = CGPoint(x: (leftEyeTop.x + leftEyeBottom.x) / 2, y: (leftEyeTop.y + leftEyeBottom.y) / 2)
                            let rightEyeCenter = CGPoint(x: (rightEyeTop.x + rightEyeBottom.x) / 2, y: (rightEyeTop.y + rightEyeBottom.y) / 2)
                            let eyeDistance = hypot(rightEyeCenter.x - leftEyeCenter.x, rightEyeCenter.y - leftEyeCenter.y)

                            
                            // 你需要维护一个状态来跟踪之前帧的眼睛距离
                            // 如果eyeDistance突然变小并且小于某个阈值，则认为发生了眨眼
                            // 这里需要你自己实现逻辑来保存和比较之前的距离
                            print("11111eyeDistance:\(eyeDistance)")
                            // 示例逻辑（需要完善）
//                            if eyeDistance < someBlinkThreshold {
//                                // 检测到眨眼
//                            }
                        }
                    }
                    // 使用Vision框架处理图像并传入landmarkRequest
                    try? VNImageRequestHandler(ciImage: ciImage, options: [:]).perform([landmarkRequest])
                     */
                    
//                    self.view.addSubview(self.imageView)
//                    self.imageView.isHidden = true
//                    self.imageView.image = uiImage
//                    self.imageView.frame = CGRect(x: 0, y: 0, width: self.view.bounds.size.width, height: self.view.bounds.size.height)
                                        

                }

            }
        }
    }
    
    func handleFaceLandmarks(request: VNRequest, error: Error?) {
        DispatchQueue.main.async {
            //perform all the UI updates on the main queue
            guard let results = request.results as? [VNFaceObservation] else { return }
            self.previewView.removeMask()
            for face in results {
                self.previewView.drawFaceWithLandmarks(face: face)
            }
        }
    }

    // MARK: - 上传人脸图片
    func cropImageAndUpload(uiImage:UIImage ,facebounds:CGRect ,cgImage:CGImage){
        self.isUploadingImage = true

        let sacle = uiImage.size.width/self.view.bounds.width
        let scaleFaceBounds = CGRect(x: 0, y: 0, width: facebounds.width*sacle, height: facebounds.height*sacle*self.view.bounds.height/self.view.bounds.width)
        let scaleUiImage = UIImage(cgImage: cgImage, scale: 1.0, orientation: .leftMirrored)
        self.cropFacesToAvatarsWithExtendedArea(image: scaleUiImage) { avatarImage in
            if let avatarImage = avatarImage {
                    // 使用裁剪后的头像
                print("11111Avatar image: \(avatarImage)")

                let data = avatarImage.compressImage()
                print("11111Image size: \(data.count/1024) KB")
                
                CNLiveAuthTool.shared.authToolHiddenBlock = {
                    self.isUploadingImage = false
                }
                
                CNLiveDigitalAuthViewModel.postFaceImageDataWithParams(name: self.realName, idNo: self.realNumber, fileData: data) { result, status in
                    if status == .success{
                        //保存最新实名身份数据
                        self.saveRealData()
                        
                    }else{
                        //提示认证失败
                        CNLiveAuthTool.shared.showAuthFailAlert()
                    }
                }
                
//                self.view.addSubview(self.faceImageView)
//                self.faceImageView.image = avatarImage
//                self.faceImageView.frame = CGRect(x: 50, y: 200, width: avatarImage.size.width, height: avatarImage.size.height)
//                self.faceImageView.backgroundColor = .red
                } else {
                    print("No faces detected or error occurred.")
                }
        }

    }
    //zx
    func cropFacesToAvatarsWithExtendedArea(image: UIImage, completion: @escaping (UIImage?) -> Void) {
        guard let cgImage = image.cgImage else {
            completion(nil)
            return
        }
        
        let imageRequestHandler = VNImageRequestHandler(cgImage: cgImage, options: [:])
        
        let faceDetectionRequest = VNDetectFaceRectanglesRequest { (request, error) in
            guard let observations = request.results as? [VNFaceObservation], !observations.isEmpty else {
                completion(nil)
                return
            }
            
            let faceObservation = observations.first // 假设我们只处理第一张脸
            
            // 扩大边界框以包含更多区域（如脖子和头发）
            // 这可以通过调整边界框的origin和size来实现
            let leftRightScale = 0.1
            let upDownScale = 0.2
            let minX = max(faceObservation!.boundingBox.minX - upDownScale, 0.0)// 向上调整边界以包括头发
            let minY = max(faceObservation!.boundingBox.minY - leftRightScale, 0.0) // 向左调整边界
            let maxX = min(faceObservation!.boundingBox.maxX + upDownScale, 1.0)// 向下调整边界以包括脖子
            let maxY = min(faceObservation!.boundingBox.maxY + leftRightScale, 1.0) // 向右调整边界
            
            let extendedBoundingBox = CGRectMake(minX, minY, maxX - minX, maxY - minY)
            
            // 将归一化坐标转换为像素坐标
            let scale:CGFloat = image.scale
            let cropRect = CGRectMake(extendedBoundingBox.minX * CGFloat(cgImage.width) * scale, extendedBoundingBox.minY * CGFloat(cgImage.height) * scale, extendedBoundingBox.width * CGFloat(cgImage.width) * scale, extendedBoundingBox.height * CGFloat(cgImage.height) * scale)
            
            // 使用Core Graphics裁剪图片
            if let croppedCGImage = cgImage.cropping(to: cropRect) {
                let croppedImage = UIImage(cgImage: croppedCGImage, scale: UIScreen.main.scale, orientation: image.imageOrientation)
                DispatchQueue.main.async {
                    completion(croppedImage)
                }
            } else {
                DispatchQueue.main.async {
                    completion(nil)
                }
            }
        }
                
        // 执行请求
        do {
            try imageRequestHandler.perform([faceDetectionRequest])
        } catch {
            DispatchQueue.main.async {
                completion(nil)
            }
            
        }
    }
    
}

// Camera Settings & Orientation
extension CNLiveFaceAuthController {
    func availableSessionPresets() -> [String] {
        let allSessionPresets = [AVCaptureSession.Preset.photo,
                                 AVCaptureSession.Preset.low,
                                 AVCaptureSession.Preset.medium,
                                 AVCaptureSession.Preset.high,
                                 AVCaptureSession.Preset.cif352x288,
                                 AVCaptureSession.Preset.vga640x480,
                                 AVCaptureSession.Preset.hd1280x720,
                                 AVCaptureSession.Preset.iFrame960x540,
                                 AVCaptureSession.Preset.iFrame1280x720,
                                 AVCaptureSession.Preset.hd1920x1080,
                                 AVCaptureSession.Preset.hd4K3840x2160]
        
        var availableSessionPresets = [String]()
        for sessionPreset in allSessionPresets {
            if session.canSetSessionPreset(sessionPreset) {
                availableSessionPresets.append(sessionPreset.rawValue)
            }
        }
        
        return availableSessionPresets
    }
    
    func exifOrientationFromDeviceOrientation() -> UInt32 {
        enum DeviceOrientation: UInt32 {
            case top0ColLeft = 1
            case top0ColRight = 2
            case bottom0ColRight = 3
            case bottom0ColLeft = 4
            case left0ColTop = 5
            case right0ColTop = 6
            case right0ColBottom = 7
            case left0ColBottom = 8
        }
        var exifOrientation: DeviceOrientation
        
        switch UIDevice.current.orientation {
        case .portraitUpsideDown:
            exifOrientation = .left0ColBottom
        case .landscapeLeft:
            exifOrientation = devicePosition == .front ? .bottom0ColRight : .top0ColLeft
        case .landscapeRight:
            exifOrientation = devicePosition == .front ? .top0ColLeft : .bottom0ColRight
        default:
            exifOrientation = devicePosition == .front ? .left0ColTop : .right0ColTop
        }
        return exifOrientation.rawValue
    }
}

// MARK: - AVCaptureVideoDataOutputSampleBufferDelegate
extension CNLiveFaceAuthController: AVCaptureVideoDataOutputSampleBufferDelegate {
    func captureOutput(_ output: AVCaptureOutput, didOutput sampleBuffer: CMSampleBuffer, from connection: AVCaptureConnection) {
        
        guard let pixelBuffer = CMSampleBufferGetImageBuffer(sampleBuffer),
        let exifOrientation = CGImagePropertyOrientation(rawValue: exifOrientationFromDeviceOrientation()) else { return }
        
        //zx
        self.tempPixelBuffer = pixelBuffer

        var requestOptions: [VNImageOption : Any] = [:]
        
        if let cameraIntrinsicData = CMGetAttachment(sampleBuffer, key: kCMSampleBufferAttachmentKey_CameraIntrinsicMatrix, attachmentModeOut: nil) {
            requestOptions = [.cameraIntrinsics : cameraIntrinsicData]
        }
        
        let imageRequestHandler = VNImageRequestHandler(cvPixelBuffer: pixelBuffer, orientation: exifOrientation, options: requestOptions)
        
        do {
            try imageRequestHandler.perform(requests)
        }
            
        catch {
            print(error)
        }
    }
    
    
}